Clamp.



WILLIAM B. RUDDICK, OF NET/V YORK, N. Y.

CLAMP.

Specification of Letters Patent.

Patented May 7, 1907.

Application filed August 1, 1906. Serial No. 328,735.

To all whom, it mctyponcern:

Be it known that I, WILLIAM B. RUDDIOK, a citizen of the United States,residing at New York city, in the county of New York and State of NewYork, have invented certain new and useful Improvements in Clamps,

of which the following is a specification.

My invention relates to clamps. I

It should be understood that, in fire proof building construction thefloor sleepers have to be secured to the concrete arches, as they arenot, as in ordinary building construction, supported by their endsextending into the walls, the usual way of accomplishing this being byembedding them in the concrete arches, but this way as well as allothers known to this applicant are attended with more or lessunsatisfactory results and also necessitate the expenditure ofconsiderable time and labor.

My invention therefore has for its object to overcome the abovementioned di'lficultiesby providing a clamp by which anchors forsecuring the floor sleepers may be grasped and properly inserted andpositioned in a soft base, usually green concrete, so that their upperends project beyond the surface of the base, whereby when the basebecomes hard the anchors will be firmly secured therein in the positionrequired to receive the sleeper between them and be driven in saidsleepers, thereby insure perfectly level and firm floors.

It has for a further object to provide a device of the character setforth embodying advantages in point of simplicity and inexpensiveness ofconstruction and effectiveness in operation.

In the drawings :Figure 1 is a vertical sectional view through aconcrete arch or base, showing my clamp in the position it as sumes wheninserting the anchors. Fig. 2 is a plan view of my clamp. Fig. 3 isanenlarged detail vertical sectional view through a concrete arch orbase and through one of my clamps showing. the clamp in the position itassumes when inserting the anchors. Fig. 4 is an enlarged detailvertical sectional view through a concrete arch or base and through oneof my clamps, showing my clamp in the position it assumes when beingwithdrawn. Fig. 5 is an enlarged detail face view of one of the socketedplates which the upper ends of the anchors engage when grasped by theclamp. Fig. 6 is an enlarged detail edge view of one of the anchors, andFig. 7 is a fragmentary detail perspective view of a concrete arch orbase, showing sleepers secured in position thereon by the anchorsinserted and positioned by my clamp.

In all the figures of the drawings illustrating my invention, likereference characters designate corresponding parts.

Referring to the drawings, the intermediate fixed jaw of the clamp issubstantially T shaped in cross-section, embodying a central verticallyextending portion 1 provided at its top with lateral horizontallyextending portions 2 and 3. The lower end of the portion 1 of this jawis incased in a suitable covering 4 of sheet metal to protect it fromwear and prevent it from sticking to the green concrete. The lateralmovable jaws 5 and 6 of the clamp are hung on the portions 2 and 3respectively of the fixed jaw by suitable spring hinges 7 adapted tonormally hold them yieldably in contact with the portion 1 of the fixedjaw and bring their outer faces normally fiush with the outer faces ofthe portions 2 and 3 of the fixed jaw.

To permit the movable jaws to open without engaging. the concrete theyare made shorter than the portion 1 of the fixed jaw and these jaws areprovided with laterally extending handles 8 which afford means foropening them against the action of the spring hinges. To the inner facesof the movable jaws, in staggered relation to one another, are securedpairs of metal plates 9 having right angular shaped sockets 10 adaptedto receive the upper ends of the anchors 11 for securing the iloorsleepers 12 to the concrete base or arch 13.

To afford means for 'truing up the clamps preparatory to fully insertingand positioning the anchors in the green concrete, a verticallyextending rod 14. is secured in the top of the fixed jaw at about acentral point between the anchors in each of the end pairs of plates andthese rods are brought into contact with a guide line 15. These anchorspreferably embody a straight portion 16 provided at each end withoppositely extending portions 17 and 18 bent over therefrom and havingbeveled faces 19 to make them pointed for easy insertion into the fioorsleepers.

The operation of inserting and positioning the sleeper anchors in thegreen concreted base is as follows: grasp the handles 8 and force themovable jaws 2 and 3 open against the action of the spring hinges,insert the upper ends of the anchors into the sockets in the plates 9,release the jaws allowing them to be closed by the action of the springhinges, thereby firmly clamping the anchors between the plates thereonand the fixed jaw, place the clamp in an upright position with the lowerends of the anchors resting on the green concrete and the rods 14against the guide line 15, place the foot on the top of the clamp andpress down until the lower end of the part 1 of the clamp contacts withthe concrete, thus forcing the anchors down the proper depth in theconcrete, then grasp the handles 8 again and open and release theanchors. After the concrete has hardened somewhat thus firmly securingthe anchors, the sleepers are placed between the pairs of an'chorsrunning in line with one another and the ends of the anchors are driveninto the sleepers thus securely fastening them.

The method of securing the sleepers is not herein claimed as it formsthe subject of a copending application filed by me on the 5th day ofApril, 1907, Serial Number 366,476.

I do not wish to be understood as limiting myself to the details ofconstruction and arrangement as herein described and illustrated, as itis manifest that variations and modifications may be made in thefeatures of construction and arrangement, in the adaptation of thedevice to various conditions of use, without departing from the spiritand scope of my invention and improvements. I therefore reserve theright to all such variations and modifications as properly fall withinthe scope of my invention and the terms of the following claims.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. Aclamp for the purpose set forth, embodying an intermediate fixedjaw, lateral movable jaws and means for holding said jaws normallyclosed, substantially as described.

2. A clamp for the purpose set forth, embodying an intermediate fixedjaw and lateral movable jaws having sockets, substantially as described.

3. A clamp for the purpose set forth, embodying an intermediate fixedjaw, and lateral movable jaws provided with plates hav ing sockets,substantially as described.

4. A device for the purpose set forth, embodying an intermediate fixedjaw, lateral movable jaws and means for yieldably holding said jawsnormally closed, substantially as described.

5. A clamp for the purpose set forth, embodying an intermediate fixedjaw, movable jaws having engaging means and means for holding said jawsnormally closed, substantially as described.

6. A clamp for the purpose set forth, embodying an intermediate fixedjaw, movable jaws having engaging means and means for yieldably holdingsaid jaws normally closed, substantially as described.

7. A clamp for the purpose setforth, embodying an intermediate fixed jawand lateral hinged jaws, substantially as described.

8. A clamp for the purpose set forth, embodying an intermediate fixedjaw, lateral hinged jaws and means for holding said jaws normallyclosed, substantially as described.

9. A clamp for the purpose set forth, embodying an intermediate fixedjaw, lateral hinged jaws and means for yieldably holding said jawsnormally closed, substantially as described.

10. A clamp for the purpose set forth embodying an intermediate fixedjaw, lateral hinged jaws having sockets and means for holding said jawsnormally closed, substantially as described.

11. A clamp for the purpose set forth embodying an intermediate fixed awhaving lat eral extensions and lateral jaws hinged to said extensions,substantially as described.

12. A clamp for the purpose set forth embodying an intermediate fixedjaw having lateral extensions, lateral jaws hinged to said extensionsand means for holding said jaws normally closed, substantially asdescribed.

13. A clamp for the purpose set forth embodying an intermediate fixedjaw having lateral extensions, lateral jaws hinged to said extensionsand means for yieldably holding said jaws. normally closed,substantially as described.

In testimony whereof, I have signed my name, in the presence of thesubscribing wit nesses.

WILLIAM B. RUDDICK. Witnesses:

JAMES A. BOYLAN, KERRIN X. DALLARD.

